OpenAI has launched GPT-5.3 Codex offering a 25% speed increase over GPT-5.2 Codex, helping developers ship code faster.

OpenAI has recently published a detailed architecture description of the Codex App Server, a bidirectional protocol that decouples the Codex coding agent's core logic from its various client surfaces.

With OpenAI's recent introduction of Codex CLI and new foundation models, the company hearkens us back to 2021 when its Codex AI model powered the tool that helped jump-start the GenAI revolution: ...

Claude Code vs ChatGPT Codex compared for performance, pricing, workflows, and privacy to find the best AI coding assistant ...

OpenAI announced yesterday Codex Desktop, a new native macOS app that treats AI coding agents like teammates you can direct, ...

OpenAI has announced the Codex app for macOS, aiming to help developers handle several AI agents together, run work in parallel, and manage long-running tasks. Codex access is bundled with most ...

Today, OpenAI launched a macOS desktop app for Codex, its large language model-based coding tool that was previously used through a command line interface (CLI) on the web or inside an integrated ...

In a bid to inject AI into more of the programming process, OpenAI is launching Codex CLI, a coding “agent” designed to run locally from terminal software. Announced on Wednesday alongside OpenAI’s ...

What if your command line could think for you? Imagine typing a single prompt and watching an AI-powered tool not only generate code but also manage tasks, visualize workflows, and streamline ...

OpenAI Codex uses AI to help you understand and write code better. You can set up Codex Command-Line (CLI) to make the coding process a lot simpler and efficient. To ...

Notably, GPT-5.3-Codex is the first OpenAI model that was used to create itself: The team used early versions of the model to debug its training, manage its deployment, and diagnose test results and ...